Carburetor



F. D. ACKLEY.

CARBURETOR.

APPLICATION FILED ocr.14. 1920.

p, Patented Nov. 7, i922.

2 SHEETS-SHEET l.

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f ATTORNEY.

'F. D. ACKLEY.

Patented. Nov. 7 1922,

2 SHEETS-SHEET 2.

' INVENTOR.

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Patented Nov. 7, 1922.

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FRED D. ACKLEY, OF KIRKLAND, WASHINGTQN.

CARBURETOR.

. I Application filed October 14, 1920. Serial No. 416,902.

To all wlw/nt it may concern:

Be it known that I, FRED D. ACKLEY, a citizen of the United States, and residing at Kirkland, in the county of King and State of Washington, have invented certain new and useful Improvements in Carburetors, of which the following is a specification.

This invention relates to an attachment for carburetors wherein substantially all liquid fuel may be separated from the atomized fuel in accordance with and proportional to the speed of the engine.

With the engine idling or running at low speeds, it is desirable that practically all of the liquid fuel be separated from the gas stream and only the atomized fuel be permitted to enter the engine, while as the speed increases, in order that a proper fuel supply may be had, it is desirable that a correspondingly increased proportion of the fuel be permitted to enter the engine, in order that the increased demand for fuel will be met.

The present invention is designed to automatically take careof this condition, so that at low speeds practically all of the liquid fuel is separated from the gas stream and at increased speeds a corresponding increased proportion of fuel is held against separation from the gas stream and caused to enter the engine.

ln the drawings Fig. 1 is a vertical section view partly in `elevation illustrating the application of the attachment.

Fig. 2 is a section on line 2--2 of Fig. l.

Fig. 3 is an end yview of the improved device.

Fig. 4 is a plan showing the operating means for the attachment.

The improved device is arranged in the intake manifold and forms a part thereof. The device comprises a chamber 1 concentric with and of greater diameter than that of the manifold 2. The device includes a tubular extension 3 opening from the chamber 1 and corresponding to the manifold in diameter, the free end l of the extension. and the corresponding opening 5 from the opposite end of the chamber being formed with appropriate plate sections 6, whereby the device may be connected by bolts or the like to the carburetor outlet 7 and to the manifold 2. The extension 3 of the device is thus inline between the carburetor and manifold, while the chamber 1 forms a receptacle of increased area concentric with the length only of suchl member, as

manifold. Connecting the extension 3 and the outlet opening 5 of the chamber is a sleeve-like member 8 having a diameter corresponding to that of the extension and divided longitudinally by narrow ribs 9 to thus form a series of openings 10 in such sleeve member. r1`he openings V10 thus constitute a greater portion of the area of the sleeve member and extend a portion of the l clearly shown in Fig. 2. A sleeve cutoff 11 slidably embracing the member 8 is mounted thereon, the cut-off being of such length that when in inoperative position, as shown in Fig. 1, the interior of the sleeve member 8 is opened to the chamber 1 through the openings 10, while when the cut-off is drawn toward the carburetor, the size of the openings 10 is correspondingly reduced, until in a fully| operative position, the interior of the sleeve member is wholly closed against the chamber. integral with and to one side of the extension 3 is a cylindrical body 12 in which is rotatably supported a rod 13. A pin 14 extends laterally fromthe rod 18 to within the extension 3, and said pin is connected at its end with the cutoff 11 through divergent rigid connectors 15. The upper end of the rod 13 is provided with a lateral arm 16 having an operating bar 17 pivotally connected to the free end thereof. The end of the bar 17 remote from the arm 16 is formed with a slot 18 to receive a pin 19 dependingfrom the arm 2O connected to and arranged to control the usual butterfly valve 21. A spring 22 is connected to one end of the arm 16 and to a pin 23 on the carburetor or other appropriate part, the spring being normally tensioned to so operate the rod 13 as to move` the cut-off into open or inoperative position.

It will be apparent that with butterfly valve substantially closed, as when the engine is operating at low speed, the cut-off 11 will be in inoperative position, that is the position shown in Fig. 1, in which position practically all of the liquid content of the fuel will gravitate from the gas stream into the chamber 1, from which it may be delivered through an outlet 24 to the howl of the carburetor or other storage chamber. As the throttle valve is opened to increase the speed of the engine, the arm 20 by which the butterfly valve is controlled, will be permitted to move an appreciable distance, through the pin and slot connection 18 and i9 before effecting corresponding movement of the arm li'. At the predetermined point however, the arm ll' will be operated drawf ing upon the cnt-off to gradually close the oienings l0. vWhen the engine reaches a predetermined speed, which of course may be regulated by proper proportions of the parts, the cut-off will prevent any escape of the liquid fuel in the gas stream, and will compel all such fuel to enter the engine as is desirable.

Claims:-

l. carburetor attachment comprising a liquid fuel chamber, a sleeve having openings communicating with said chamber, said sleeve being connected in line with the intake manifold from the carburetor, and means governed in the control of the fuel passing through the intake manifold to vary the size of said openings.

2. A carburetor attachment comprising a fuel conduit forming part of an intake manifold and having outlet openings therein, a chamber surrounding said conduit to receive fuel delivered through said openings, a cutoff slidable on the conduit to control said openings, and means operated in the control of the fuel passing through the intake manifold to actuate said cut-off.

l it lcarburetor attachment comprising a fuel conduit forming part of an intake manifold and having outlet openings therein, a chamber surrounding said conduit to receive fuel delivered through said openingsl` a cutoff' slidable on the conduit to control said openings, and means operated in the control of the fuel passing through the intake manifold to actuate said cut-off, said means having a limited movement Without effecting lthe cut-off.

4. A carburetor attachment comprising a casing'having openings in the ends thereof, a tube formed with cut-away portions -mounted in the openings, a sleeve valve slidably mountedl onthe tube between the ends of the casing, one ofthe ends Aformed with a neck, a bearing transversely integral with said neck portion adapted to receive a pintle, a bell crank integral with saidv pintle, a lever pivotally mounted to said bell crank, said lever yieldingly attached to a carburetor control means.

5. A carburetor attachment comprising a casing, centrally disposed aligned openings therein, a tube mounted in the casing formed with cutfaway portions, a sleeve valve slidably mounted on said tube between thef ends of the casing, one of the` ends formed with a neck, a bearing transversely integral with said neck portion adapted to receive a pintle, a bell crank integral with said pintle, a lever pivotally mounted to said bell crank, said lever yieldingly attached to a carburetor control means, a pin rigidly mounted in the said pintle whose outer end is formed with a recess, a yoke means pivotally mounted in the recess of said pin the ends of said yoke being pivotally connected to the said sleeve, said pin adapted to move the said sleeve in one direction, means for attaching the said casing in between a manifold and carburetor, a control means for the said carburetor adapted to move the said sleeve at a predetermined time, apipe communicating with the interior of the casing and integral therewith, for conveying the liquid contents of the casing away from the Casing.

t carburetor' attachment comprising a c5 sing having centrally disposed and aligned openings therein, a tube mounted in the casing and formed with cut-,away portions, a sleeve valve slidably mounted. on said tube,

`one ofthe end plates of said casing formed with a neck portion, a bearing transversely integral with the said neck portion, a pintle revolubly mounted in said bearing, a bell crank integral with said pintle, means for returning said pintle to a normal position, said means being a spring. y

In testimony whereof I affix my signature.

FRED D. ACKLEY. 

